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Ver el documento (formato PDF)   Picca, Pablo Ignacio.  "Estudio exomorfológico y anatómico de las inflorescencias de las especies Austroamericanas del género Nothofagus BL. (Fagaceae)"  (1998)
Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires
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Abstract:
The pistillate inflorescence of Fagaceae is surrounded and protected by a structure unique within the angiosperms: the cupule. Since last century, the lack of homologies, even among the groups more closer related to this family, has given place to a morphological approach to this structure. Historically, the small, inmature cupules and the related pistillate inflorescences have been focused on the mature, lignified and more conspicuous cupules and on the fruits protected by this kind of structures. In the present research work, it has been studied the external morphology of the staminate inflorescences and of the inmature cupules of the southamerican species of Nothofagus B1. (Fagaceae). It has also been studied the inner vascular pattern of the cupule’s valves. The purpose of this research is to get a better comprehension of the morphological nature of such interesting and enigmatic structure. An a possibleexplanation for the evolution of the cupule’s caracteristics is proposed, rlying on the different morphological variants observed in the studied species. In this way, the morphological links between Nothofagus and Trigonobalanus clearly appear confirming the close link existing between Nothofagus and the rest of the Fagaceae.
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Título : Estudio exomorfológico y anatómico de las inflorescencias de las especies Austroamericanas del género Nothofagus BL. (Fagaceae)     =    Exomorphological and anatomical study of the inflorescences of Southamerican Nothofagus BL. (FAGACEAE) species
Autor : Picca, Pablo Ignacio
Director : Palacios, Ramón Antonio
Año : 1998
Editor : Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires
Filiación : Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales
Departamento de Ciencias Biológicas. Laboratorio de Sistemática de Plantas Vasculares
Grado obtenido : Doctor en Ciencias Biológicas
Ubicación : Preservación - http://digital.bl.fcen.uba.ar/gsdl-282/cgi-bin/library.cgi?a=d&c=tesis&d=Tesis_3031_Picca
Idioma : Español
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